package cv.gzd.robot.interceptor;

import cv.gzd.robot.pojo.User;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


/**验证是否登录拦截器
 * @Author: Jun
 * @Date: 2018/8/16 23:48
 */
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        String requestURI=httpServletRequest.getRequestURI();
        if(!requestURI.contains("/login")){
            User user= (User) httpServletRequest.getSession().getAttribute("USER_SESSION");
            if(user==null){
                httpServletResponse.sendRedirect(httpServletRequest.getContextPath()+"/login.action");
                return false;
            }
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
